Hey so I'm upgrading the head unit in my 2001 Audi A6 2.7 and the back speakers are too quiet. Can't adjust fader because they're fed off an AMP (Non Bose I believe but I had to use the bose wiring harness).

Problem is that the factory set up is pumping out 20 watts to each speaker where as the new head unit is doing 50 to each speaker. So I need to do an aftermarket amp.

Was wondering if someone had or knew where to find a wiring diagram for the car stereo so I can start cutting wires. :L